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x²-7x+6=0 v x²-7x+10=0
x²-x-6x+6=0 v x²-2x-5x+10=0
x(x-1)-6(x-1)=0 v x(x-2)-5(x-2)=0
(x-1)(x-6)=0 v (x-2)(x-5)=0
x=1 v x=6 v x=2 v x=5
Odp. x∈{1, 2, 5, 6}